test262/test/built-ins/DataView/instance-extensibility-sab.js

37 lines
1013 B
JavaScript

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 24.2.2.1
esid: sec-dataview-buffer-byteoffset-bytelength
description: >
The new instance is extensible
info: |
24.2.2.1 DataView (buffer, byteOffset, byteLength )
...
12. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DataViewPrototype%",
« [[DataView]], [[ViewedArrayBuffer]], [[ByteLength]], [[ByteOffset]] »).
...
17. Return O.
9.1.13 OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ ,
internalSlotsList ] )
...
3. Return ObjectCreate(proto, internalSlotsList).
9.1.12 ObjectCreate (proto [ , internalSlotsList ])
...
5. Set the [[Extensible]] internal slot of obj to true.
...
features: [SharedArrayBuffer]
---*/
var buffer = new SharedArrayBuffer(8);
var sample = new DataView(buffer, 0);
assert(Object.isExtensible(sample));